U型预应力混凝土支护板桩承载力计算方法  

Calculation method for bearing capacity of U-shaped pretressed reinforced concrete sheet pile

作　　者：上官京灵[1] 黄广龙[1] 耿山河 

机构地区：[1]南京工业大学交通学院,江苏南京210009 [2]江苏中技桩业有限公司,江苏镇江212132

出　　处：《南京工业大学学报（自然科学版）》2013年第5期100-104,共5页Journal of Nanjing Tech University(Natural Science Edition)

基　　金：江苏省产学研联合创新资金项目(BY2012031)

摘　　要：采用I字形截面构件水平承载力计算方法计算U型预应力混凝土支护板桩水平承载力,其中U型计算截面运用截面等效法简化为I字形截面,预应力计算按照预应力混凝土结构构件预应力损失法。该计算方法简单快捷,计算结果与现有U型预应力混凝土板桩承载力试验数据吻合较好,可靠性较高。The horizontal bearing capacity of U-shaped pretressed reinforced concrete sheet pile was calcu- lated by the method for calculating that of the I-shaped structures. The U-shaped calculation section was simplified as I-shaped section by the equivalent cross-section area method. The prestressing was calculat- ed by the prestress loss method. This method was simple and convenient. The calculation results agreed well with the experimental data of existing pretensioned U-shaped prestressed reinforced concrete sheet pile and had high reliability.

关 键 词：U型预应力混凝土支护板桩 截面等效法 预应力损失 抗弯性能 抗剪性能 

分 类 号：TU378[建筑科学—结构工程]